Which statements is not true about prokaryotes?

a. prokaryotes vary widely in shape and sizes

b. prokaryotes store their generic information in a nucleus

c. prokaryote use DNA to store their genetic information

d. prokaryotes are usually single-celled but can be multicellular

The correct answer is b. prokaryotes store their genetic information in a nucleus

Explanation:

Prokaryotes are organisms that do not have a true nucleus. A true nucleus is an organelle that is membrane-bound and contains the cell's genetic material inside it.

In prokaryotes nucleus is not present do its genetic material is spread in the cytoplasm of the cell. Bacteria and archaea are considered to come under the prokaryotes group because they do not have a membrane-bound nucleus and other organelle.

Eukaryotes are the organisms that have membrane-bound nucleus and they store their genetic information in the nucleus. Therefore the correct answer is b. prokaryotes store their genetic information in a nucleus.